2) In an embankment dam construction project, dam body consists of an inner clay part and outer rockfill. Which test do you prefer for the following situations, respectively: 1. Before collecting water in reservoir, evaluate the short term slope stability analysis of the clay core. II. One year after collecting water in reservoir, you need to drop the water level due to an earthquake. Evaluate the slope stability of the clay core O a. Direct Shear Test-Falling Head Test O b. Direct Shear Test- Consolidated Undrained Test O . Unconsolidated Undrained Test-Consolidated Drained Tes O d. Vane Shear Test-Direct Shear Test O e. Consolidated Drained Test -Consolidated Undrained Test

2) In an embankment dam construction project, dam body consists of an inner clay part and outer rockfill. Which test do you prefer for the following situations, respectively: 1. Before collecting water in reservoir, evaluate the short term slope stability analysis of the clay core. II. One year after collecting water in reservoir, you need to drop the water level due to an earthquake. Evaluate the slope stability of the clay core O a. Direct Shear Test-Falling Head Test O b. Direct Shear Test- Consolidated Undrained Test O . Unconsolidated Undrained Test-Consolidated Drained Tes O d. Vane Shear Test-Direct Shear Test O e. Consolidated Drained Test -Consolidated Undrained Test

Principles of Foundation Engineering (MindTap Course List)

8th Edition

ISBN:9781305081550

Author:Braja M. Das

Publisher:Braja M. Das

Chapter13: Retaining Walls

Section: Chapter Questions

Problem 13.4P

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An embankment consists of clay fill for which c=25 kPa and angle of internal friction is 260 (from consolidated undrained test with pore pressure measurement) The weight of fill per unit volume is 18.64 kN/m3. Compute the effective stress in kPa at a depth of 20 m. If the pore pressure at this point is shown by a piezometer to be 180 kPa. a. 62.5 b. 372.8 c. 192.8 d. 21.6
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